Three part documentary of the history of the Royal Air Force during World War Two. They combine actual Air Ministry films and period newsreel footage with interviews of surviving members of the air force. The second part covers the early years of 1939-1940 from the threat of German invasion preceded by Oporation Eagle attacks on airfields and ports, through the Battle of Britain to the commencement of the British bombing of Berlin after attacks on London and wider civilian casualties such as Coventry.